032/2020

. 1118 conductor n is the number of free electrons available per 173, v be the axial drift
velocity of electrons in meters/second, A is area of cross-section of the conductor
and e is the charge of free electrons then what will be the current density J ?

nev ne
A) nAev 8) 7” C) vA

. If there are three resistors of R Ohm, in which two resistors are connected in parallel
and third resistor is connected in series with this parallel combination. What will be
effective resistance of this series parallel circuit ?

D) nev

2R R+2R R
A) ರ್ಕ 8) क्र 0) 2 D) 2
. Resistance of a material is independent of
A) Magnetic flux B) Length
C) Nature of material D) Temperature

~ What will be the current drawn by a lamp of rating 230 ५, 100 W when it is connected
across 50 V 60 supply ?

A) 0.0945 A 8) 0.0261 A C) 0.0831 A D) 0.0362 A
. 1 kWh is equal to

A) 3.6x 105 ‏ل‎ 8) 36x 105 J

©) 0.36 x 105 J 0) 0.036 x 105
. What is the unit of power ?

A) ‏25ل‎ 8) 4/6 ©) 2 D) J
. According to Kirchhoff's voltage law in 8 closed loop

A) ೫೧-೫೦೧-0 8) 2182 + 2012 = 0

©) 2۱١ + ‏تمعد‎ =0 0) 218 + 26011 = 1

~ When two resistors R, and R, are connected in series and this series combination
is connected across V volts. What will be the voltage across resistor R, ?

۷
. Bilateral x ति
^) ‏ريبع‎ ர 8) ‏ی8۰8‎
‎० ‏ہے‎ D ۷
) R,-R, 1 ) 7172